Please help!!
You roll a die as your friend records the outcomes. You rolled the die 20 times and 11 rolls were 3. Is this normal? Why or why not

Answers

Answer 1
No, this is not normal

This is a binomial distribution. Use BINS to determine if this is binomial.
B - binary?
I - independent?
N - number of trials
S - probability of success

B - yes, 3 or not a 3
I - yes, past rolls do not impact future rolls
N - 20 trials
S - prob success 1/6

Use binompdf on your calculator to find out the probability. To access, 2nd —> vars —> binompdf

Binompdf(20 (trials), 1/6 (p), 11 (x)) = 8.97x10^-5

The probability to roll a 3 11 times is .0000897. The chances are very low, making this not normal.

Related Questions

help I will give brainliest to wboever answers best​

Answers

Answer:

Area of ABD = 9/2 or 4.5cm^2

Step-by-step explanation:

Area of triangle =

[tex] \frac{bh}{2} [/tex]

plug-in ABD

[tex] \frac{3 \times 3}{2} [/tex]

[tex] \frac{9}{2} [/tex]

Area of ABD = 9/2 or 4.5cm^2

5. The ratio of dog owners to cat owners is 4:3. If 320 people in a city own dogs, how many people own
cats?

Answers

4/3 = 320/x
4x = 320*3
4x = 960
x = 240

Check:
320/240 divide both by 80
= 4/3 :)

Answer:

240

Step-by-step explanation:

the answer is 240 bc if you divide 4 from 4:3 320/4 is 80 and use the 3 from 4:3 80x3 is 240

find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5​

Answers

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

Help me help me help me

Answers

Answer:

The ratio is 5:4 and the only one that fits is 25,20 so that's the answer.

Step-by-step explanation:

5:4 is the ratio...............

A car depreciates in value by 17% per year.
If it cost $23 000 when it was new, how much is it worth after 4 years?

Answers

Answer:

17%of 23000

17/100×23000

1 yrs depreciation is 3910

then

after 4 years depreciation is 4×3910

=15640

the worth of after 4 yrs is 23000-15640

=Rs 7360

Does anyone know this?​

Answers

Answer:

B

Step-by-step explanation:

(2*5) - 2 = 8

May Nilbin Be With You

BRAINLIEST! Pls help... ​

Answers

Answer:

Option A

Step-by-step explanation:

Any number that can be written in the form of a fraction [tex](\frac{p}{q})[/tex] will be a rational number.

From the given options,

Option (A)

Given expression [tex]\sqrt{\frac{x^2+2x-5}{2x^2-3x+4}}[/tex] can't be written in the form of a fraction [tex](\frac{p}{q})[/tex] (Without square root).

Therefore, given function is not a rational function.

Rest all options represent a rational function.

Option A will be the answer.  

John works 40 hours per week at a rate of $20 per hour. He earns 1 1/2 times his regular pay for every hour worked over 40. What is his pay, in $, for a 46 hour work week?​

Answers

780 is the answer have. A good day

I NEED HELP!! WILL GIVE BRAINLEST!!!

Solve the system below by GRAPHING:

Y=5x-8

Y=1/3x+6

Answers

Answer:

I promise you the app Math. way will save you it will do it for u and show you where to put it on the graph just download it

Question 1 of 17
Rachel rides her bicycle due east at 12 kilometers per hour. Amos rides his
bicycle due north at 16 kilometers per hour. If they left from the same point at
the same time, how far apart will they be after 3 hours?

Answers

Answer:

they will be 60 kilometers apart.

Step-by-step explanation:

well you use pythagorean theorem

12 × 3

=36

16 × 3

=48

pythagorean theorem states that:

a²+b²=c²

so

48² + 36² =3600

then, because c is squared, you just square root it

√3600 = 60

I drew a diagram to help explain, it's a bit crude but it works

There is one third of a pie shared equally between 5 children. How much of the pie does each child receive? one ninth pie one fifteenth pie one eighteenth pie one twentieth pie

Answers

Answer:

Each of the 5 children receive one fifteenth pie

Step-by-step explanation:

Given:

One third of a pie shared equally between 5 children.

To find:

Amount of the pie with each of the 5 children.

Solution:

Number of children = 5

Also, one third of a pie shared equally between 5 children.

So,

Amount of the pie with each of the 5 children [tex]=\frac{\frac{1}{3} }{5}=[/tex] [tex]\frac{1}{15}[/tex]

Hence, each of the 5 children receive one fifteenth pie.

first we need to ask our self the question

Question: There is one third of a pie shared equally between 5 children. How much of the pie does each child receive?

__________________________________________________________

next we need to do the math. 1/3 divided by 5

i recommend turning the fractions into decimal points and then dividing them. after doing that we have the answer 0.067. but that is not a option. so turn it into a fraction! and we get 1/15.

__________________________________________________________

extra note: thank you for reading my answer! if this helps you can say thanks by clicking the heart. you can also rate it by clicking a star.

click down there to get help from a tutor

__________________________________________________________

plssssss plsss help meeee ❤️❤️❤️

Answers

Answer:

slope is 2/3

Step-by-step explanation:

To solve for slope: y2-y1 / x2- x1.

Two points can be (0,50) and (30,70) since they intercept.

70-50 / 30- 0 = 20/30 = 2/3.

The slope is also going 20 units up and 30 units across which gives you 2/3.

Devon has been saving $5 & $10 for the past four years. Over spring break he wanted to see how much money he has saved up. After counting the money he calculated that he has a total of $395 & had 49 bills. Based on this information, how many $5 & $10 bills does he have?

Answers

Answer:

19 five dollar bills

30 ten dollar bills

Step-by-step explanation:

x=number of $5 bills

y=number of $10 bills

x+y=49

x=49-y

5x+10y=395

substitute for x

5(49-y)+10y=395

245-5y+10y=395

245+5y-245=395-245

5y=150

5y/5=150/5

y=30

x=49-30=19

Which expression is equivalent to
and why?
x
A
x-20, because first you multiply the exponents in the numerator and then
divide by the exponent in the denominator.
B
x21, because you first you add the exponents in the numerator and ther
subtract by the exponent in the denominator, and then add the new
exponents using the power of the power property.
i

Answers

Answer:

Step-by-step explanation:

and equals the state of art called minecraft

ANSWER QIuCK PLEASE VERY URGENt

Answers

Answer:

It would just be .8

Step-by-step explanation:

All your doing is changing the sign before the number

5. 10^6 is how many times as large as
5 . 10^4

Answers

Answer:

100 times

Step-by-step explanation:

[tex]\frac{5.10^6}{5.10^4} \\=10^6.10^{-4}\\=10^{6-4}\\=10^2\\=100[/tex]

Answer:

Step-by-step explanation:

Given: AD = BC and AD || BC
Prove: ABCD is a parallelogram,
A
В
Assemble the proof by dragging tiles to
the Statements and Reasons columns

Answers

Answer:Hope this helps!

Step-by-step explanation:

Work out the size of angle x.Give reasons for your answer .

Answers

Answer:

75°

Step-by-step explanation:

AD and EH are parallel

So Angle GFE equals to angle FBA

And angle CBA equals 180°-angle FBA= 180°-105°= 75°

Please put the Brainlest

The value of x would be 75 degrees beacuse of corresponding angles on the same line of tranversal.

What are corresponding angles?

In literal sense, corresponding means pair wise angles. Like the right corner angles of two triangles etc. But usually we take them as: For two similar figures, the pair by pair similar angles of those two similar figures are called corresponding angles. They are of same measurement.

Given that AD and EH are parallel lines

So Angle GFE is equals to angle FBA.

And angle CBA equals to 180°

Angle FBA = 180°-105°

Angle FBA = 75°

Hence, The value of x would be 75 degrees beacuse of corresponding angles on the same line of tranversal.

Learn more about angles here:

https://brainly.com/question/2882938

#SPJ2

The length of a diagonal of a square is 10 square root of 2 inches. Find the length of one side of the square.

Answers

Answer:

10inches

Step-by-step explanation:

Let the length of one side of the square be  a

If the diagonal of a square is 10√2 inches

According to pythagoras theorem

a²+a² = (10√2)²

2a² = 100(2)

2a² = 200

a² = 200/2

a² = 100

a = √100

a = 10

Hence the length of one side of the square is 10inches

The table shows the results of randomly selecting colored marbles from a bag 40 times. The marble was returned to the bag after each selection. Based on the results, what is the expected probability of randomly selecting a green marble from the bag in one attempt?
A: 0.125
B:0.20
C: 0.80
D:1.0

Answers

Answer:

Item 23 The table shows the results of randomly selecting colored marbles from ... Are you an educator? ... The marble was returned to the bag after each selection . ... results, what is the expected probability of randomly selecting a green marble ... A . 0.125 B . 0.20 C . 0.80 D . 1.0 Item 24 The six sides of a number cube are ...

Step-by-step explanation:

Answer:

b:0.20 i guess this is the answer.

4−2(3+7)=4−2⋅3−2⋅7 is this a true equation?

Answers

Answer: it is a true equation.  

Step-by-step explanation:

Please help me solve this

Answers

Answer:

i have done it (*_*)

add them together then you should get 180 add 16 into it which should giver you 196 then divide by 4 which should give you 14.

which of these shapes are paralellograms? choose all the correct anwsers

Answers

These are all the shapes

how about this one −p+
5
3

q−
10
1

q+
9
1


9
1

p

Answers

Answer:

NaNx10^-23

Step-by-step explanation:

What is the value of the expression 0.52?
0.125
0.25
0.52
1
I only have an hour please help! I will give brainliest!!

Answers

Answer:

0.25

Step-by-step explanation:

lets say you have half a cake

multiplying a decimal is the same as multiplying its counterpart

basically, you divide half a cake in half

0.25 of a cake, or 1/4

uwu

Answer:

0.25

Step-by-step explanation:

What is the equation of this graph?

Answers

Answer (assuming it is allowed to be written in slope-intercept form):

[tex]y = -\frac{2}{3} x + 1[/tex]

Step-by-step explanation:

When knowing a line's y-intercept and its slope, you can write its equation using slope-intercept form, or [tex]y = mx + b[/tex].

1) First, find the slope of the line. Read the graph and look at the two points marked on the line - they are (0,1) and (3,-1). Use the slope formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] , substitute the x and y values of those points, and solve:

[tex]\frac{(-1)-(1)}{(3)-(0)} \\= \frac{-1-1}{3-0} \\= \frac{-2}{3}[/tex]

Thus, the line's slope is [tex]-\frac{2}{3}[/tex].

2) Now, use the slope-intercept formula, [tex]y = mx + b[/tex], to write an equation. Substitute the [tex]m[/tex] and [tex]b[/tex] for real values.

The [tex]m[/tex] represents the slope, so substitute [tex]-\frac{2}{3}[/tex]  in its place. The [tex]b[/tex] represents the y-value of the y-intercept, or the point at which the line crosses the y-axis. Looking at the graph, we can see that the line intersects the y-axis at (0,1). Thus, substitute 1 for [tex]b[/tex]. This gives the following equation and answer:

[tex]y = -\frac{2}{3} x + 1[/tex]

HELP PLZZ I would really really appreciate it ​

Answers

Answer:

31

Method:

X + 21 = 52 is the same as 52 - 21 = x. 52 - 21 = 31 so x = 31

The equation is x + 21 = 52

In algebraic equations, you always want to isolate the variable (x) so To do that you would subtract 21 from both sides, and then you would do 52 - 21 = 32

x + 21 = 52
-21 = -21
x = 31

Round the decimals to whole numbers to estimate first, then
calculate 7.6 x 1.4

I’m looking for that estimate multiplication answer.

Answers

Pretty sure the answer would be 16.
Because 7.6 rounds to 8 and 1.4 would round up to 2. Then you multiply 8 & 2 and get 16.

11
10/20
Streak
Victoria recieves $7.50 each week for allowance. Which equation can be used to
find the number of weeks, Victoria must save her allowance in order to buy a
bicycle that costs $90.

Answers

Your answer is $7.50x=90

The deer population in smith county is 35 deer per square mile. What is the deer population for 105 square miles in smith county?

Answers

Answer:

3675

Step-by-step explanation:

105 x 35 = 3675

is there are 35 deers for every square mile, there must be 105 times as many in 105 miles

Answer:

3675 deer

Step-by-step explanation:

105 * 35 = 3675

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